This list of most viewed YouTube videos contains the top 70 videos with the most views of all time, as derived from YouTube charts. Videos that YouTube suspects have had their view counts manipulated are not included in this list. View counts are based on the YouTube website; many of the videos are music videos that play through YouTube's partner site, Vevo, and YouTube view counts will lag those of Vevo by a few days. Of the 70 videos in this list, 66 are music videos, with 48 of them being Vevo videos.
These videos include the "Billion View Club", a group of videos whose view counts have exceeded one billion (109) views each. Prior to June 28, 2015, only two videos, "Gangnam Style" and "Baby", had reached this milestone, but less than 3½ months later, on October 7, 2015, ten videos had done so.
As of February 2017[update], a total of 47 videos have exceeded one billion views, four of which have exceeded two billion views. The five fastest videos to reach one billion views are "Hello", in 87 days, "Sorry" (137 days), "Gangnam Style" (159 days), "Closer (Lyric video)" (165 days), and "This Is What You Came For" (166 days).
As of February 2017[update], Justin Bieber is the only artist to have four videos exceeding one billion views, while Taylor Swift has three, with two of hers being in the top 10. Katy Perry, Fifth Harmony, Psy, Adele, Ellie Goulding, and Calvin Harris each have two videos that exceed one billion views.